Clutch device for upright vacuum cleaner and upright vacuum cleaner having same

Patent metadata

Field	Value
Publication number	US-10383494-B2
Application number	US-201715635096-A
Country	US
Kind code	B2
Filing date	Jun 27, 2017
Priority date	Dec 10, 2015
Publication date	Aug 20, 2019
Grant date	Aug 20, 2019

Abstract

A clutch device for an upright vacuum cleaner and an upright vacuum cleaner having the same are provided. The clutch device is disposed between an electric motor assembly and a machine body assembly of the upright vacuum cleaner, the electric motor assembly includes an electric motor housing and an electric motor, the machine body assembly includes a machine body and a bridging member rotatably connected to the electric motor housing. The clutch device includes a slide chute; and a triggering member having a first end provided with a sliding column slidably fitted in the slide chute and a second end provided with a toggling rod configured to stir the electric motor to move. When the bridging member drives the slide chute to move, the sliding column slides along the slide chute to rotate the triggering member. When the triggering member rotates, the toggling rod stirs the electric motor to rotate.

First claim

What is claimed is:

1. A clutch device for an upright vacuum cleaner, wherein the clutch device is disposed between an electric motor assembly and a machine body assembly of the upright vacuum cleaner, the electric motor assembly comprises an electric motor housing and an electric motor disposed in the electric motor housing, a machine body and a bridging member mounted to the machine body, the bridging member is rotatably connected to the electric motor housing, and the clutch device comprises:
a slide chute formed in the bridging member; and
a triggering member rotatably supported on the electric motor housing, and having a first end provided with a sliding column which is slidably fitted in the slide chute, and a second end provided with a toggling rod which is configured to stir the electric motor to move,
wherein when the bridging member drives the slide chute to move, the sliding column slides along the slide chute so as to rotate the triggering member, and when the triggering member rotates, the toggling rod stirs the electric motor to rotate with respect to the electric motor housing.

2. The clutch device according to claim 1 , wherein the triggering member comprises:
a first triggering portion on which the sliding column is formed;
a second triggering portion on which the toggling rod is formed; and
a pivotal segment connected between the first triggering portion and the second triggering portion and rotatably passing through the electric motor housing.

3. The clutch device according to claim 2 , wherein the pivotal segment is disposed vertically, the first triggering portion is disposed perpendicular to the pivotal segment, in a direction from a first end of the first triggering portion adjacent to the sliding column to a second end thereof adjacent to the pivotal segment, a vertical height of the first triggering portion is reduced gradually.

4. The clutch device according to claim 3 , wherein an upper surface of the first triggering portion is formed an arc surface corresponding to a shape of the bridging member.

5. The clutch device according to claim 3 , wherein the electric motor housing is provided with an accommodating space for accommodating the first triggering portion and for receiving rotation of the first triggering portion therein.

6. The clutch device according to claim 2 , wherein the first triggering portion is detachably connected to the pivotal segment.

7. The clutch device according to claim 2 , wherein the pivotal segment is vertically disposed, each of the first triggering portion and the toggling rod is disposed perpendicular to the pivotal segment, and an included angle between a direction in which a length of the toggling rod extends and a direction in which a length of the first triggering portion extends has a range of 0°-90°.

8. The clutch device according to claim 1 , wherein an end portion of the toggling rod is provided with an inclined face configured to push the electric motor casing.

9. The clutch device according to claim 1 , wherein the slide chute is configured as a linear slide chute and extends obliquely with respect to a front-rear direction.

10. The clutch device according to claim 1 , wherein the triggering member is rotatably supported in a longitudinal center line of the electric motor housing.

11. An upright vacuum cleaner comprising: a clutch device, an electric motor assembly and a machine body assembly, wherein the clutch device is disposed between the electric motor assembly and the machine body assembly, the electric motor assembly comprises: an electric motor housing and an electric motor disposed in the electric motor housing, a machine body and a bridging member mounted to the machine body, the bridging member is rotatably connected to the electric motor housing, and the clutch device comprises:
a slide chute formed in the bridging member; and
a triggering member rotatably supported on the electric motor housing, and having a first end provided with a sliding column which is slidably fitted in the slide chute, and a second end provided with a toggling rod which is configured to stir the electric motor to move,
wherein when the bridging member drives the slide chute to move, the sliding column slides along the slide chute so as to rotate the triggering member, and when the triggering member rotates, the toggling rod stirs the electric motor to rotate with respect to the electric motor housing;
wherein the electric motor drives a brushroll of the upright vacuum cleaner to roll by a drive belt and is rotatable between a first vertical position of tensioning the drive belt and a first inclined position of loosening the drive belt; the bridging member is rotatably connected to the electric motor housing so that the machine body is rotatable between a second vertical position and a second inclined position; when the machine body is moved from the second vertical position to the second inclined position, the bridging member drives the electric motor to move from the first inclined position to the first vertical position by the triggering member.

12. The upright vacuum cleaner according to claim 11 , wherein an angle by which the electric motor is rotated from the first inclined position to the first vertical position has a range of 1°-10°.

13. The upright vacuum cleaner according to claim 12 , wherein an angle by which the electric motor is rotated from the first inclined position to the first vertical position has a range of 3°-8°.

14. The upright vacuum cleaner according to claim 11 , further comprising a tensioning pulley or an elastic element for adjusting a tension degree of the drive belt.

15. The upright vacuum cleaner according to claim 11 , wherein the bridging member and the machine body are separately formed and connected by assembling, or the bridging member and the machine body are integrally formed.

16. The upright vacuum cleaner according to claim 11 , wherein an electric motor shaft of the electric motor is vertically disposed, a rotation axis of the brushroll is disposed perpendicular to the electric motor shaft, and the drive belt is provided with a twist angle of 90° and is twined around the electric motor shaft and the brushroll so that the electric motor drives the brushroll to rotate.

17. The upright vacuum cleaner according to claim 16 , wherein the brushroll comprises a first brushroll segment provided with bristle, a second brushroll segment provided with bristle and a connecting shaft segment connected between the first brushroll segment and the second brushroll segment, and the drive belt is twined around the electric motor shaft and the connecting shaft segment so that the electric motor drives the brushroll to rotate.

18. The upright vacuum cleaner according to claim 17 , wherein respective center axes of the first brushroll segment, the second brushroll segment and the connecting shaft segment are in the same line, and the first brushroll segment and the second brushroll segment are symmetrical relative to the drive belt.

19. The upright vacuum cleaner according to claim 17 , further comprising a brushroll casing covering the brushroll, wherein the brushroll casing is internally provided with a drive belt mounting cavity for accommodating the connecting shaft segment and the drive belt, and a first air suction flow passage and a second air suction flow passage located at two sides of the mounting cavity and spaced apart from the mounting cavity.

Assignees

• Jiangsu Midea Cleaning Appliances Co Ltd

Inventors

• Hu Wei
• Zou Hui
• Xiao Xiahu

Classifications

• A47L9/165

  Construction of inlets · CPC title

• A47L5/225

  Convertible suction cleaners, i.e. convertible between different types thereof, e.g. from upright suction cleaners to sledge-type suction cleaners · CPC title

• A47L9/009

  Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles · CPC title

• A47L9/22

  Mountings for motor fan assemblies · CPC title

• A47L5/00

  Structural features of suction cleaners · CPC title